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Number of mobiles sold in 30 days by Ms. Raja Electronics

222, 228, 238, 215, 225, 219, 217, 230, 218, 237, 214, 210, 235, 222, 220, 214, 212, 220, 237, 212, 238, 218, 210, 216, 217, 234, 233, 237, 219, 239

Prepare a frequency distribution table having class interval as 210-215, 215-220 using tally marks.

Draw a histogram using table and answer the following questions.

(i) Number of mobiles sold in which class interval are maximum?

(ii) How many days 230 or more mobiles were sold?

(iii) On how many days less than 230 or mobiles were sold?

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Frequency Distribution Table:

(i) The class interval 215-220 has the maximum frequency.

(ii) In 3 + 7 = 10 days, 230 or more mobiles are sold.

(iii) In 6 + 8 + 4 + 2 = 20 days, less than 230 mobiles are sold.

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